tooth·​fish | \ ˈtüth-ˌfish How to pronounce toothfish (audio) \
plural toothfish or toothfishes

Definition of toothfish

: either of two large marine food fishes (genus Dissostichus of the family Nototheniidae) found especially in antarctic and subantarctic waters:

Examples of toothfish in a Sentence

Recent Examples on the Web Some fishing already occurred there for Antarctic toothfish, a predatory fish that is sold as the highly prized Chilean sea bass. Brian Clark Howard, National Geographic, "World's Largest Marine Reserve Created Off Antarctica," 28 Oct. 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'toothfish.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of toothfish

1997, in the meaning defined above

Keep scrolling for more

Learn More about toothfish

Time Traveler for toothfish

Time Traveler

The first known use of toothfish was in 1997

See more words from the same year

Statistics for toothfish

Cite this Entry

“Toothfish.” The Dictionary, Merriam-Webster Inc., Accessed 27 January 2020.

Comments on toothfish

What made you want to look up toothfish? Please tell us where you read or heard it (including the quote, if possible).


one that suddenly gains wealth or power

Get Word of the Day daily email!

Test Your Vocabulary

Intact Latin Quiz

  • roman tablet
  • What did focus mean in Latin?
Spell It

Can you spell these 10 commonly misspelled words?

Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!